CCL: effective nuclear charges

From: Green Power <powergreen]=[gmail.com>
Subject: CCL: effective nuclear charges
Date: Sun, 29 Nov 2009 18:47:14 -0500

Dear All,

Could you suggest a way to construct an atom X with same
 number of nuclear charge and electron as Hydrogen(ie. Z=1,e=1), but with higher
 electronegativity  than H. The reason I do this is that I want to know how the
 electronegtivity of X in a molecule affect the chemical properties.

 Thank you.

Regards

Roy